Energy & Energy Transfer

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What is conduction?

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Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids.

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

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What is radiation?

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Radiation is the transfer of energy through electromagnetic waves, which can occur in a vacuum, such as heat from the sun.

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What is potential energy?

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Potential energy is the energy stored in an object due to its position or state, such as an object at a height.

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What is gravitational potential energy?

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Gravitational potential energy is the energy an object possesses because of its height above the ground, calculated as PE = mgh (mass x gravity x height).

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How does heat transfer occur from warm to cool?

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Heat naturally flows from areas of higher temperature to areas of lower temperature until thermal equilibrium is reached.

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What is an example of conduction in everyday life?

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Heating a kettle on a stove is an example of conduction, where heat is transferred from the burner to the kettle.

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What is an example of convection in everyday life?

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Boiling water is an example of convection, where hot water rises and cooler water sinks, creating a circular motion.

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What is an example of radiation in everyday life?

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Feeling warmth from the sun on your skin is an example of radiation, where heat is transferred through electromagnetic waves.

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At which point does a biker have the greatest potential energy when riding uphill?

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The biker has the greatest potential energy at the highest point of the hill.

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